Water-closet tank.



No. 657,706. Patented Sept. ll, I900.

A. W. MOGAHAN.

WATER CLOSET TANK.

(Application filed Aug. 21, 1899.)

(No Model.)

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UNITED STATES PATENT @FFICE.

ALEXANDER WV. MOGAHAN, OF LOS GATOS, CALIFORNIA.

WATER-CLOSET TANK.

senerrrenrmw forming part of Letters Patent No. 657,706, dated September 11, 1900.

Application filed August 21, 1899. Serial No, 7275931. (No model.)

T0 to whom it may concern:

Be it known that I, ALEXANDER W. Mo- GAHAN, a citizen of the United States, residing at Los Gatos, county of Santa Clara, and State of California, have invented certain new and useful Improvements in Water-Closet Tanks; and I hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to water-closet flushing apparatus and to certain useful improvements therein.

My improvements consist in that class of devices wherein the usual float for controlling the supply-valve is dispensed with and the flushing-flow is started by a hand-controlled jet discharging through an ind notion-nozzle into the uptake-leg of the siphon.

My improvements consist, primarily, in a reorganization of parts whereby the main supply-valve and the parts accessory thereto liable to get out of order are removed from the interior of the tank to the under side thereof and made detachable and readily accessible for purposes of renewal or repair; also,in certain minor features described below and pointed out in the claims.

The objects of my invention are to simplify such flushing apparatus, to combine in one valve and one motion the functions of both supply and discharge, and to start and promote by induction the siphon action of the discharging-pipe, causing the flow to begin instantly and continue until the flushing-tank is emptied. To these ends I construct flushing apparatus as shown in the drawings herewith and forming a part of this specification.

Figure I is an elevation in perspective of a flushing-tank provided with my improved apparatus; Fig. II, an enlarged elevation of the latter, partially in section; and Fig. III, a detail showing in perspective a portion of the operating-stem.

Referring now to the drawings and to the numerals of reference thereon, l is the siphoning-pipe, 2 the inlet or supply pipe for water, and 3 the flushing or discharge pipe,the whole being attached to the bottom of the tank 4 by means of the packed collars 5 and follower screw-nuts 6, as seen in Fig. 11.

The auxiliary and main valves 7 and S are actuated by means of the stem 9, forced downward by a bell-crank 10, and a chain or cord 12, that passes over a pulley 13 and down within easy reach of an operator in the usual manner of such apparatus, and is raised by a spring 14 when the chain 12 is released. This mechanism can of course be substituted by any other more convenient or-to suit the circumstances of erection.

Referring to the main valve 7, it is made of a cup form at the top to provide space for the auxiliary valve 8 and is provided with a renewable seat 15, held by a screw cap or follower 17. The renewable seat 15, preferably made of some elastic material, has a perforation and seat at the center to receive the conical valve 8 and closes against the rim 18, formed around the bore of the member38, as seen in the section Fig. II. The conical auxiliary valve 8 is pressed upward in the direction of closing by a coil-spring 20, that has an extension 22, on which the valve rests.

The main valve 7 is provided with cupleather packing 23, held by a follower ring or nut 24. The purpose of this packing is to prevent water from the inlet-pipe 2 passing around the valve 7 down into the chamber 25.

The auxiliary valve 8 is depressed and opened by the stem 9 and the bell-crank 10, as before described, or in any other suitable manner. This stem 9 is provided with piston-valve 27, that when the stem descends closes the apertures 28, and also has a guide 29. that holds the stem 9 concentric in the chamber-30. Water finds its way from the inletpipe 2 to the chamber 25 at a predetermined and regulated rate past the screw 32, that has a score or groove 33 in its side ter1ninat-;

ing beneath the screw-head, forming a minute passage that can be increased or diminished by turning the screw 32 inward or outward. The range of this stem 9, and consequently the period of action and of filling the tank 4, can be adjusted by screwing upward or downward the gland or sleeve 43. The stem 9 when depressed pushes down the auxiliary valve 8, opening communication between the chambers 25 and 30, and when released this stem 9 is raised by the coil-spring 14 at the top, also by action of thespring 20.

The member 38, which contains the valves and main operating parts, is removablyattached to the siphon 1 by a screw-nipple 39, as seen in Fig. II, so as to be conveniently removed in case the contained parts require renewal or repairing, the siphon and other connected parts remaining undisturbed.

The main valve 7 when not in use is held firmly closed by pressure in the chamber and by reason of the area of the packing 23 being greater than that of the seat at 18.

Having described the constructive parts required to carry out my invention, I will now explain the manner of their operating.

The tank 4 being filled or partially filled with water, the cord 12 is pulled, the stem 9 is depressed by the bell-crank 10, the apertures 28 are closed by the piston-valve 27, and the auxiliary valve 8 is pushed downward and opened, permitting water from the chamber 25 to escape around the stem 22 into the chamber and through perforations in the top of the piston-valve 27 into the chamber 40. This relieves the chamber 25 of pressure, and the main valve 7 at once moves downward by the service-pressure in the pipe 2 and the chamber 37 until this valve passes the inlet-Way 2 and permits the service-Water to pass directly into the chamber 30. The water thus entering the chamber 30 is forcibly ejected from the nozzle 35, as indicated in Fig. II, starting the siphon action and flow down through the flushing-pipe 3, drawing the water from the tank 4 through the inletways 42 until air enters these and stops the flow. WVhen the cord 12 is released and the stem 9 rises, water from the chamber 30 and the service-pipe 2 continues to flow into the tank 4 through the apertures 28, furnishing in part the flushing-supply. When the stem 9 rises, the auxiliary valve 8 closes by action of the spring 20, and the chamber 25 begins to fill by water that passes the small groove or inlet way in the screw 32, the main valve '7 rising accordingly as the chamber 25 is supplied and until the tank 4 is again filled or partially filled and ready to be again discharged. The induction action from the nozzle 35 at once starts the siphoning action, also maintains the fiow, and, as before explained, supplies in part the flushing-water, and, as will be seen, the period of action and of filling the tank 4 is determined by adjustment of the sleeve 43 and the screw 32, the latter determining the time required to fill the chamber 25.

The apertures 28 are drilled obliquely upward, so they will at the top be above the level of the Water that would remain in the tank after the same is emptied, so far as possible, by siphonage when the tank is drained for repairs, the water-supply being shut oif. This prevents the small amount of water remaining below the siphonage action from running out through the valve-chamber 38 by way of said apertures when the plug at the bottom of the valve-chamber is removed.

I do not confine myself to the precise construction shown, Where obvious changes or modifications of the mechanism will not interfere with the manner of operating and are in substance the same as I have described and illustrated.

Having thus explained the nature and objects of my invention and the manner of applying the same, what I claim as new, and desire to secure by Letters Patent, is

1. In flushing apparatus, a tank, a siphon therein, connected with the tank-bottom by both legs, the downtake-leg communicating with a flushing-pipe, the uptake-leg having an induction-nozzle terminating therein, a water supply connected with said nozzle by a detachable connection beneath said tank, and

main and auxiliary valves in said detachable connection, substantially as specified.

2. In flushing apparatus, a tank, a siphon in said tank, connected by its downtake-leg with a flushing-pipe, its uptakedeg connecting with an inlet-pipe passing through the tank-bottom and terminating in an ind uctionnozzle within said siphon, a main valve in said inlet-pipe below the tank-bottom, a detachable connection between said main valve and said nozzle, an auxiliary valve within said main valve for controlling the movements thereof, and means for operating said auxiliary valve through the induction-nozzle, substantially as specified.

3. In flushing apparatus, a tank, a siphon in said tank, connected by its downtake leg with a flushing-pipe, its uptake-leg secured to an inlet-pipe passing through the tankbottom and terminating in an induction-nozzle Within said siphon, a main valve in said inlet-pipe below the tank-bottom, a detachable connection between said main valve and said induction-nozzle, an auxiliary valve in said main valve, a stem within said induction-nozzle for operating said auxiliary valve, an adjustable gland surrounding said stem, and means for operating said stem and valve, substantially as specified.

4. In flushing apparatus, a tank, a watersupply pipe passing up through the bottom of said tank, and terminating in an inductionnozzle, a detachable connection between said pipe and said nozzle, a main valve in said supply-pipe seating upward against the direct inlet to the nozzle, a pressure-chamber beneath said valve, operating to hold the same closed, a regulable passage through the valve for maintaining the water supply in said chamber, an auxiliary valve in said main valve, for releasing the pressure in the pressure-chamber, and a stem for operating the auxiliary valve, passing down through the induction-nozzle, substantially as specified.

5. In flushing apparatus, a tank, a siphon, connected by its uptake-leg with a water-supply pipe, and by its downtake-leg with a flushing-pipe, an induction-nozzle in said uptakeleg, perforations in the siphon communicating with the tank above the induction-nozzle,

, and perforations in the said nozzle communieating with the tank below the siphon-perforations, substantially as specified.

6. In flushing apparatus, a tank, a siphon connected by its uptake-leg with a water-supply pipe, and by its downtake-leg with a flushing-pipe, an induction-nozzle in said uptakeleg, perforations in the siphon communicating with the tank above the induction-nozzle, and perforations in the induction-nozzle leading from near the bottom of the tank obliquely upward to a plane above the perforations in the siphon, substantially as and for the purpose specified.

7. In flushing apparatus, a tank, a watersupply pipe passing up through the bottom of said tank, and terminating in an inductionnozzle, a detachable connection between said pipe and said nozzle, a main valve in said supply-pipe seating upward against the direct inlet to the nozzle, a pressure-chamber beneath said main valve in regulable communication with the water-supply, a packing around the main valve to complete the pres sure-chamber, of greater diameter than the valve-seat, an outlet from the pressure-chamber upward through the main valve, an auxiliary valve within the main valve to close the outlet, and a stem passing down through the induction-nozzle to operate the auxiliary valve, substantially as specified.

8. In flushing apparatus, a tank, a siphon therein, connected by its uptake-leg with a water-supply pipe, and by its downtake-leg with a flushing-pipe, an induction-nozzle in said uptake-leg, perforations in the siphon communicating with the tank above the induction-nozzle, oblique perforations in said nozzle communicating with the tank below the siphon-perforations, a perforated pistonvalve 27 within said induction-nozzle for closing said oblique perforations and at the same time allowing a jet to pass-through the nozzle, and means for operating said pistonvalve, substantially as specified.

9. In flushin g apparatus,a tank and siphon, a supply-pipe connecting to one leg of the siphon, a main valve therein closing upward by water-pressure and provided with a removable perforated seat and an auxiliary valve fitting therein, a spring to close the auxiliary valve and a depressible stem to open the same, the latter provided with an adj ustable gland and a spring in the manner shown, all combined and operating substantially as described.

10. In flushing apparatus, a tank, a siphon in said tank, the downtake-leg terminating in a flushing-pipe, the uptake-leg firmly secured to an inlet-pipe passing up through the bottom of the tank, said inlet-pipe terminating in an induction-nozzle within said uptake-leg, a detachable section affixed to said inlet-pipe below the tank, a main valve in said detachable section, an auxiliary valve in said main valve, and means for operating said auxiliary valve from above, through said inductionnozzle, substantially as specified.

11. In flushing apparatus, a tank, a siphon in said tank, connected with the bottom thereof by both legs, the downtake-leg communicating with a flushing-pipe, the uptake-leg having a water-supply way terminating, in a nozzle therein, perforations in the siphon above said nozzle, a main valve in the water supply way below the tank-bottom, seated against the inlet to the siphon, a detachable connection between said main valve and said nozzle, a piston-packing on said main valve of greater diameter than said valve-seat, a cylindrical pressure-chamber for said pistonpacking to move in, a means for releasing the pressure in said pressure-chamber whereby the valve may be unseated by the water-pressure of the supply, and a regulable passage in the valve from the water-supply to said chamber, whereby the latter is refilled when the pressure-releasing means has ceased to operate, after a definite time determined by the aperture in the valve, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALEXANDER W. MCGAHAN.

Witnesses:

W. B. BAKER, D. O. ORUMMAY. 

